Research on the failure and fracture factors of spring in high voltage circuit breakers

Zhixin Xu; Yingzhe Cheng; Deming Weng; Qindi Pan; Peng Xie; Kuosong Chen; Sheng Chen; Jianlong Lin; Jiehao Chen; Weimin Wang

doi:10.1117/12.3026196

1 April 2024 Research on the failure and fracture factors of spring in high voltage circuit breakers

Zhixin Xu, Yingzhe Cheng, Deming Weng, Qindi Pan, Peng Xie, Kuosong Chen, Sheng Chen, Jianlong Lin, Jiehao Chen, Weimin Wang

Author Affiliations +

Proceedings Volume 13082, Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023); 130822O (2024) https://doi.org/10.1117/12.3026196
Event: 2023 4th International Conference on Mechanical Engineering, Intelligent Manufacturing and Automation Technology (MEMAT 2023), 2023, Guilin, China

Abstract

The failure of the operating spring stress in high-voltage circuit breakers, along with fatigue fracture, can result in inadequate opening and closing speeds, exceeding the specified opening and closing times, and the inability to close, seriously affecting the safe and stable operation of equipment and the power grid. In the actual production and maintenance processes, neglecting the operating conditions of the high-voltage circuit breaker spring, such as temperature, loading position, preload, motor vibration, and other factors, leads to poor estimation accuracy of the spring's fatigue state and remaining life. Additionally, the inability to accurately judge the creep and relaxation characteristics of the spring during use results in phenomena such as spring creep deformation and relaxation, leading to problems of missing maintenance opportunities. This paper focuses on studying the influence of external operating conditions, as well as creep and relaxation characteristics, on the properties of the spring. It aims to provide relevant support for the design and operation of springs in subsequent applications.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Zhixin Xu, Yingzhe Cheng, Deming Weng, Qindi Pan, Peng Xie, Kuosong Chen, Sheng Chen, Jianlong Lin, Jiehao Chen, and Weimin Wang "Research on the failure and fracture factors of spring in high voltage circuit breakers", Proc. SPIE 13082, Fourth International Conference on Mechanical Engineering, Intelligent Manufacturing, and Automation Technology (MEMAT 2023), 130822O (1 April 2024); https://doi.org/10.1117/12.3026196

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KEYWORDS

Deformation

Vibration

Material fatigue

Analytic models

Design

Materials properties

Protactinium

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